Relationship between SSP and Rw (NaCl predominant)

Input(s)

$R_{(m f)_{e q}}$: Equivalent Resistivity of Mud Filtrate (ohm m)

$\mathrm{K}$: Equilibrium Constant $(\mathrm{mV})$

A: Proportionality Factor (dimensionless)

$a_{w}$: Activity of $\mathrm{NaCl}$ (dimensionless)

Output(s)

$\left(R_{w}\right)_{e q}$: Equivalent Resistivity of Formation Water (ohm m)

SSP: Static Self Potential (V)

Formula(s)

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 6, Page: 133.